<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <meta name="author" content="常伟">
        <title>错误 - 知识问答</title>
    </head>
    <body>
        <h1>知识问答</h1>
        <p>服务端错误：{{message}}</p>
    </body>
</html>